A file tool for polishing the outer surface of a round steel pipe

Abstract

This utility model discloses a file for grinding the outer surface of a circular steel pipe, comprising a file body and a first handle. The file body includes a first blade, a second blade, and a third blade, which are fixedly connected in sequence. The first and third blades are straight files, while the second blade has a semi-circular design. The first handle is fixed to the end of the first blade away from the second blade. The advantages of this utility model are: its simple structure and ease of implementation; it avoids altering the shape of the circular steel pipe during grinding, thus improving grinding quality; and the use of the first and third blades to clean surfaces that are difficult to clean increases grinding speed and improves work efficiency.

Description

Technical fields:

[0001] This utility model relates to the field of file technology, and in particular to a file for grinding the outer surface of a circular steel pipe. Background technology:

[0002] A file, a hand tool, has many fine teeth on its surface and is used to smooth the surface of a workpiece. Round steel pipes are widely used in electrical equipment in the power industry. To prevent rust, these round steel pipes need to be painted for corrosion protection. Simultaneously, for clear marking, various colors of paint need to be applied to these pipes. To improve the adhesion time of these paints, the surface of these round steel pipes needs to be treated before painting to remove impurities and old paint. Because the round steel pipe is circular, and ordinary files are straight, grinding with ordinary knives and files is inefficient, difficult to completely remove old paint, and over-grinding can even change the shape of the round steel pipe. Therefore, the process of cleaning the surface of round steel pipes with files is inefficient and urgently needs to be improved. Utility model content:

[0003] The purpose of this utility model is to provide a file tool for grinding the outer surface of a circular steel pipe that has a simple structure, improves grinding quality, and increases work efficiency.

[0004] This utility model is implemented by the following technical solution: The purpose of this patent is to provide a file for grinding the outer surface of a circular steel pipe, which includes a file body and a first handle; the file body includes a first blade, a second blade and a third blade that are fixedly connected in sequence, the first blade and the third blade are straight files, and the second blade is a semi-circular ring design; the first handle is fixed at the end of the first blade away from the second blade.

[0005] Furthermore, the working surface of the file body is provided with filing marks.

[0006] Furthermore, the cross-sectional shape of the file body is one of the following: flat, circular, square, triangular, rhomboid, semi-circular, or knife-shaped.

[0007] Furthermore, the first handle is tilted and fixed to the first blade body, and the angle between the first handle and the first blade body is 90-110°.

[0008] Furthermore, it also includes a second handle, which is fixed to the end of the third blade away from the second blade, and the center line of the third blade and the center line of the second handle are a straight line.

[0009] Advantages of this utility model: This utility model has a simple structure and is easy to implement. In use, the semi-circular second blade grinds the surface of the circular steel pipe by moving up and down or left and right. The contact area between the semi-circular second blade and the surface of the circular steel pipe is increased, which avoids changing the shape of the circular steel pipe during grinding and improves the grinding quality. Then, the first and third blades are used to clean the surfaces that are difficult to clean, which increases the grinding speed and improves work efficiency. Attached image description:

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 for Figure 1 A cross-sectional view of section AA.

[0013] Figure 3 for Figure 1 Top view.

[0014] File body 1, first blade 11, second blade 12, third blade 13, first handle 2, second handle 3. Detailed implementation method:

[0015] Example: Figure 1-3As shown, a file for grinding the outer surface of a circular steel pipe includes a file body 1, a first handle 2, and a second handle 3. The cross-sectional shape of the file body 1 is flat, and the working surface of the file body 1 is provided with filing marks. The file body 1 includes a first blade 11, a second blade 12, and a third blade 13 connected in sequence. The first blade 11 and the third blade 13 are straight files and auxiliary files. After the second blade 12 grinds the surface of the circular steel pipe, if there are stubborn debris or old paint on the surface of the circular steel pipe, the first blade 11 and the third blade 13 are used to clean them. The body 12 has a semi-circular design. The semi-circular second blade 12 is the main file for grinding the outer surface of the circular steel pipe of the electrical equipment. When in use, the second blade 12 is used to grind the outer surface of the circular steel pipe first. The semi-circular file and the surface of the circular steel pipe have increased contact area, which avoids changing the shape of the circular steel pipe during grinding and improves the grinding quality. A first handle 2 is fixed at the end of the first blade 11 away from the second blade 12. The first handle 2 is fixed at an angle to the first blade 11. The angle α between the first handle 2 and the first blade 11 is 90-110°, which makes it convenient for the operator to hold the first handle 2 to push and pull the file body 1.

[0016] A second handle 3 is fixed at the end of the third blade 13 away from the second blade 12. The center line of the third blade 13 and the center line of the second handle 3 are a straight line. The double handle design makes it convenient for the operator to hold the file for polishing.

[0017] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A file for grinding the outer surface of a circular steel pipe, characterized in that, It includes a file body and a first handle; the file body includes a first blade, a second blade and a third blade that are fixedly connected in sequence, the first blade and the third blade are straight files, and the second blade is a semi-circular ring design; the first handle is fixed at the end of the first blade away from the second blade.

2. The file for grinding the outer surface of a circular steel pipe according to claim 1, characterized in that, The working surface of the file body is provided with filing marks.

3. A file for grinding the outer surface of a circular steel pipe according to claim 2, characterized in that, The cross-sectional shape of the file body is square.

4. A file for grinding the outer surface of a circular steel pipe according to claim 1, characterized in that, The first handle is fixed at an angle to the first blade body, and the angle between the first handle and the first blade body is 90-110°.

5. A file for grinding the outer surface of a circular steel pipe according to any one of claims 1-4, characterized in that, It also includes a second handle, which is fixed to the end of the third blade away from the second blade, and the center line of the third blade and the center line of the second handle are a straight line.

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